Community-built physics experiments and study materials — run an experiment live and fork it into your own studio, or read a guide someone wrote.
Twenty-four perfectly elastic balls in a sealed box. There is no temperature setting here, because temperature is not a thing you set -- it is the average kinetic energy of these bodies, on the energy chart. Pressure is the balls hitting the walls. Nothing damps them, so the total energy line stays flat, and the speeds shuffle into a spread through collisions alone: thermodynamics as mechanics, with the statistics left to emerge.
Rubber, steel, oak and clay, all the same size, all dropped from ten metres at the same instant. Each one carries a property wired from nodes that computes its live kinetic energy and its total path length, and each one glows with the energy it has left. Watch the clay give everything to the floor on the first hit while the rubber ball keeps handing it back. The glow is not a lighting effect — it is ½mv², measured every step.
